Hajimari is the oldest Brother, and is a natural born leader. And also a Hashira. He uses Origin Breathing, and Origin breathing is the strongest of the seven Siblings breathing styles, and has 14 forms. He has medium length Dark brown hair, and Green eyes. He also wears a dark red haori, and wears the Demon slayer corps Uniform beneath his haori.

He is the second oldest brother. and uses Infinity Breathing, and it has 12 forms. He acts similary to Hajimari, but more reserved. He wears a light Purplish haori worn over a corps uniform, and has dark brown hair, and his eyes are the same color as his haori.

She is the older sister, and is the Twin to Kurozumi. She uses Mythos Breathing which had 12 forms, (Same as Kurozumi). She has the same dark brown hair color as Kurozumi, and her hair is long. Kamuyasha is Slightly shorter than Kurozumi. And has deep blue eyes like the ocean. She wears a Blue haori over the corps uniform, and always carries a book where she writes myths and storys. She also does research using her book. She often facepalms herself whenever Kishinra does something, or does something stupid.

He is the younger Brother, and is very quiet, and has a very stern and cold personality. But can be very generous. He uses Fate Breathing, which has 8 forms. And You are very cool with him, and he never causes any trouble. He wears a Dark Gray Haori over a corps uniform, and has ashy crimson hair, and bright red eyes that glow sinisterly.

He is the youngest Brother that you get along with very well. And he uses Chaos Breathing, which has six forms. He is very Chaotic, and pretty much causes chaos everywhere he goes, and is also very energetic, but you still get along with him very well. He has Orange, firey hair, and a orange haori over a corps uniform. His eyes are bright red.

She is the Youngest Sister and is very sweet and caring for her siblings and everyone else. And uses Dream Breathing, and is considered the weakest of the seven styles, which has the least number of forms with only Five. You get along with Yumetsuki the best out of the rest of your siblings. She has Blonde hair that shins like gold and pink highlights, And mismatched eyes of green and blue. wears a pink haori with cloud paterns all over it, she wears the haori over a corps Uniform.

She is a Celestial Like Being. She is the personification of Aether. She is a being that You bonded with when you transformed into a demon. Her personality is often mischievious, and caring towards you since you are her favorite host. She takes the form of a Japanese woman in her mid twentes and wears standard japanese clothing.